Bosch 0 261 200 400 - - BMW 520 2.0 24V

This is Bosch petrol engine control unit.

Part number 0 261 200 400 (alternative: 0261200400)
ECU Type DME
ManufacturerRobert Bosch GmbH
Software part number 1 267 356 300
Brand BMW
Model 520
Engine 2.0 24V
This control unit can very likely be diagnosed using BimCOM diagnostic tool.